Robu - India's Innovative Electronics Community

Hello,

I've been using the STM32F103C8T6 board and recently encountered an issue where it is unable to detect the COM port in the device manager. I've tried using different USB cables and tested it on different PCs, but the problem remains unresolved. I have installed all the necessary drivers and even attempted to upload the bootloader, yet the issue persists.

could someone assist me out here?

Thank you.

The STM32 factory bootloader typically doesn't show as a COM port in device manager. It uses a Device Firmware Update (DFU) protocol, Check if your programming software has a DFU option
For some boards, specific jumpers need to be set or the Boot0 pin needs to be in a certain position to enable the UART functionality. In rare cases, there might be a hardware fault with the USB interface on the board. You can refer the following link below
https://youtu.be/2OwUnupABec?t=280